My problem is the following, I want to limit the number of month I display to 6 months, I tried to filter the result in dimension, or using filter but it does not work, it ignore all entries before the 6 last months and the graph I obtain is the follow, so I losing 90 KEYs.

stalwar1 unfortunately your proposition does not work, by default it add more record to the original results, and by filtering only on the last 6 months I still don't have the correct result. By I really want to resole the issue by expression. Screen shots bellow.

rubenmarin I appreciate your solution, but I have already multiple dimensions to work with and using the AS-OF table will add more complexity.